Self-suction type water treatment reaction kettle

Abstract

The utility model relates to a self-suction type water treatment reaction kettle which comprises a kettle body, an underflow pipe is arranged at the bottom of the kettle body, a water outlet of the underflow pipe is connected with a water inlet of an underflow pump, a water outlet of the underflow pump is connected with a water return pipe, and the water return pipe penetrates through the top of the kettle body and extends into the kettle body. A venturi tube is installed at the horizontal position of the top of the water return pipe and comprises a shrinkage pipe, a throat pipe and a diffusion pipe, the throat pipe and the diffusion pipe are connected with the shrinkage pipe, and the shrinkage pipe is further communicated with an air inlet pipe. According to the utility model, a set of solution circulating system is additionally arranged at the bottom of the reaction kettle, so that the internal circulation of the solution kettle is realized, the effect of fully mixing and dispersing the solution is achieved, meanwhile, a set of Venturi tube is arranged on the circulating system, the automatic suction and dynamic dissolution of air are realized, the dissolved oxygen of the solution is greatly increased, and favorable conditions are provided for water treatment.

Description

Technical Field

[0001] The utility model relates to the technical field of reaction kettles, in particular to a self-aspiration water treatment reaction kettle. Background Art

[0002] A reactor is a container used for physical and chemical reactions. Through the structural design and parameter configuration of the container, the heating, evaporation, cooling and low-speed mixing functions required by the process are realized. It is widely used in the fields of petroleum, chemical industry, rubber, pesticides, dyes, medicine, food, etc. A special water treatment reactor is used in the treatment of cyanide leaching return water from mineral processing. In order to degrade pollutants in the water body, air is usually introduced into the reactor body to increase the concentration of dissolved oxygen in the water. Generally, the gas is introduced into the reactor by setting an air inlet pipe on the reactor cover. In this ventilation method, the gas is easy to gather above the liquid material, and the gas and liquid are mainly mixed by stirring. However, this mixing is not very sufficient, resulting in a long reaction time and low reaction efficiency.

[0003] In order to solve the above problems, CN208574611U discloses a hydrogenation reaction device with an air suction device, wherein the air suction device includes an air suction pipe, an air outlet pipe and a control device, wherein the opening of the air suction pipe is located near the top wall of the hydrogenation reactor, the opening of the air outlet pipe is located near the bottom surface of the hydrogenation reactor, and the control device is located outside the hydrogenation reactor. The air suction device is used to suck the hydrogen above the liquid in the hydrogenation reactor into the air suction pipe, and then enters the liquid from the air outlet pipe, so that the hydrogen in the hydrogenation reactor can be better and faster to be fully mixed and contacted with the liquid, thereby improving the gas-liquid mixing effect, improving the reaction efficiency of the hydrogenation reaction, and optimizing the reaction effect of the hydrogenation reaction.

[0004] The present application also aims at the above-mentioned problem and provides a water treatment reactor with a self-absorption function. Utility Model Content

[0005] The utility model aims to provide a self-aspirating water treatment reactor, which can improve the gas-liquid mixing effect, increase the dissolved oxygen concentration in water, and accelerate the degradation of pollutants in the water body.

[0006] The specific technical scheme of the utility model is: a self-priming water treatment reactor, including a reactor body, an underflow pipe is arranged at the bottom of the reactor body, the water outlet of the underflow pipe is connected to the water inlet of the underflow pump, the water outlet of the underflow pump is connected to the return pipe, the return pipe passes through the top of the reactor body and extends into the reactor body, a venturi tube is installed at a horizontal position on the top of the return pipe, the venturi tube includes a contraction tube and a throat and a diffuser connected thereto, and the contraction tube is also connected to an air inlet pipe.

[0007] Further, preferably, a nozzle is connected to the lower end of the air inlet pipe, and the nozzle is close to the throat.

[0008] Furthermore, preferably, a water inlet pipe is provided on one side wall of the kettle body, and a water outlet pipe is provided on the other side wall, and the water outlet pipe is provided higher than the water inlet pipe.

[0009] The beneficial effects of the utility model are as follows: the utility model realizes the circulation of the solution in the reactor by installing a solution circulation system at the bottom of the reactor, achieving the effect of sufficient mixing and dispersion of the solution, and at the same time installing a set of venturi tubes on the circulation system to realize the automatic suction and dynamic dissolution of air, greatly increasing the dissolved oxygen content of the solution, and providing favorable conditions for water treatment. The self-priming water treatment reactor has a simple structure, and the only power source is a pump, with low energy consumption and significant cost reduction and efficiency improvement effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a front view of a self-aspirating water treatment reactor of the utility model;

[0011] Figure 2 for Figure 1 A cross-sectional view of the venturi tube in FIG.

[0012] In the figure: 1-kettle body, 2-underflow pipe, 3-underflow pump, 4-return pipe, 5-Venturi tube, 501-contraction tube, 502-throat pipe, 503-diffuser, 504-inlet pipe, 505-nozzle, 6-water inlet pipe, 7-water outlet pipe. DETAILED DESCRIPTION

[0013] In order to make the technical problems and technical solutions solved by the utility model more clearly understood, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0014] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0015] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0016] like Figure 1 Figure 2 As shown, a self-priming water treatment reactor comprises a reactor body 1, a water inlet pipe 6 is arranged on one side wall of the reactor body 1, and a water outlet pipe 7 is arranged on the other side wall. The water outlet pipe 7 is arranged higher than the water inlet pipe 6, and the treated water overflows from the upper water outlet pipe 7. An underflow pipe 2 is arranged at the bottom of the reactor body 1, and the water outlet of the underflow pipe 2 is connected to the water inlet of the underflow pump 3, and the water outlet of the underflow pump 3 is connected to the return pipe 4. The return pipe 4 passes through the top of the reactor body 1 and extends into the reactor body 1. A venturi pipe 5 is installed at a horizontal position on the top of the return pipe 4. The venturi pipe 5 includes a contraction pipe 501 and a throat pipe 502 and a diffuser 503 connected thereto. The contraction pipe 501 is also connected to an air inlet pipe 504, and the lower end of the air inlet pipe 504 is connected to a nozzle 505, which is parallel to and close to the throat pipe 502.

[0017] When the cyanide leaching return water enters the water treatment reactor body 1 from the water inlet pipe 6 for treatment, after adding the reagent according to the water treatment needs, the underflow pump 3 is started, and the solution in the reactor body 1 is circulated into the reactor body 1 along the underflow pipe 2 and the return pipe 4 through the venturi tube 5. During this circulation process, the solution is fully stirred and evenly dispersed in the entire reactor. At the same time, when the solution passes through the venturi tube 5 installed in the circulation system, the contraction tube 501 introduces the large-diameter and large-flow solution into the small-diameter throat 502. The speed of the solution increases because the cross-sectional area of ​​the circulation pipe is reduced. At this time, the pressure of the throat 502 and its surroundings decreases at the same time, thereby generating a pressure difference. This pressure difference causes the air inlet pipe 504 to generate an external suction force, thereby sucking the air outside the air inlet pipe 504 into the venturi tube 5 and diffusing it into the solution flowing through, thereby increasing the dissolved oxygen content in the solution and providing favorable conditions for water treatment.

[0018] The present invention is described in detail above through specific and preferred embodiments, but those skilled in the art should understand that the present invention is not limited to the embodiments described above, and any modifications, equivalent substitutions, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A self-aspirating water treatment reactor, comprising a reactor body (1), characterized in that: An underflow pipe (2) is arranged at the bottom of the kettle body (1); a water outlet of the underflow pipe (2) is connected to a water inlet of an underflow pump (3); a water outlet of the underflow pump (3) is connected to a return pipe (4); the return pipe (4) passes through the top of the kettle body (1) and extends into the kettle body (1); a venturi pipe (5) is installed at a horizontal position on the top of the return pipe (4); the venturi pipe (5) comprises a contraction pipe (501) and a throat pipe (502) and a diffuser pipe (503) connected thereto; the contraction pipe (501) is also connected to an air inlet pipe (504).

2. A self-aspirating water treatment reactor according to claim 1, characterized in that: The lower end of the air inlet pipe (504) is connected to a nozzle (505), and the nozzle (505) is close to the throat pipe (502).

3. A self-aspirating water treatment reactor according to claim 1, characterized in that: A water inlet pipe (6) is provided on one side wall of the kettle body (1), and a water outlet pipe (7) is provided on the other side wall; the water outlet pipe (7) is arranged higher than the water inlet pipe (6).

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